NK Grade E63 is a strong steel used to build ships that sail in icy waters. Approved by ClassNK (a top ship safety group), it can handle very heavy loads (620+ MPa strength) and still work perfectly in -40°C freezing weather.
This steel is easy to cut and weld safely. It's mainly used for icebreaker ships, oil platforms, and heavy cargo vessels. The steel meets strict quality rules and matches other international standards like ABS E63. It lasts longer in seawater than normal steel when properly protected.
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